2003 Audi A6 vs. 2007 BMW 550
To start off, 2007 BMW 550 is newer by 4 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 Audi A6 would be higher. At 4,797 cc, 2007 BMW 550 is equipped with a bigger engine. In terms of performance, 2007 BMW 550 (657 HP @ 3400 RPM) has 361 more horse power than 2003 Audi A6. (296 HP @ 6200 RPM) In normal driving conditions, 2007 BMW 550 should accelerate faster than 2003 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A6 weights approximately 158 kg more than 2007 BMW 550.
Because 2003 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 550. In wet, icy, snow, or gravel driving conditions, 2003 Audi A6 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 BMW 550 (490 Nm @ 3400 RPM) has 90 more torque (in Nm) than 2003 Audi A6. (400 Nm @ 3000 RPM). This means 2007 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2003 Audi A6 | 2007 BMW 550 | |
| Make | Audi | BMW |
| Model | A6 | 550 |
| Year Released | 2003 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4797 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 296 HP | 657 HP |
| Engine RPM | 6200 RPM | 3400 RPM |
| Torque | 400 Nm | 490 Nm |
| Torque RPM | 3000 RPM | 3400 RPM |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.1 seconds | 5.6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1818 kg | 1660 kg |
| Vehicle Length | 4840 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1470 mm |
| Vehicle Height | 1460 mm | 1850 mm |
| Wheelbase Size | 2850 mm | 2890 mm |
| Fuel Consumption Overall | 13.1 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 82 L | 70 L |
